Astronaut Luca Parmitano tweeted a view of the African continent from the International Space Station to marvel at 'the skin of Earth.'
NASA's Deep Space Atomic Clock, which will pave the way for deep space exploration, has been activated and will now begin a year-long tech demo.
On Aug. 28, 1993, NASA's Galileo spacecraft flew by the asteroid Ida on its way Jupiter. See how it happened in our "On This Day in Space" video series!
The Atacama Desert has long served as an analogue for Mars and could now provide clues about microbial life on the planet.
Auroras offer a wonderful variety of colors and phantasmagoric shapes. A vertical panorama seems to reveal one of these epic moments, with the incredible shape of a bird flying with a running rabbit.
Here's a pair of constellations that easily slithers out of the grasp of a beginning skywatcher: Ophiuchus, the serpent-bearer, and his snake.
Read an exclusive excerpt from "End Times" addressing whether space entrepreneurs like Jeff Bezos and Elon Musk are right to want to flee Earth.
Disney has announced that a "Guardians of the Galaxy" storytelling roller coaster will come to Epcot.